Solved: Why does error 521 occur?

Getting a P1684 code in your Dodge Neon after a battery swap? It may seem harmless—but corroded cables, loose terminals, or a weak alternator can lead to more serious problems if ignored. Check your connections and charging system with Haynes’ step-by-step help. Get your Dodge manual today at haynes.com. #HaynesManuals #HaynesShowsYouHow #DodgeDIY | Haynes Manuals | Facebook

The P1684 code in your Dodge Neon isn’t as scary as it seems! It usually means there’s been a power disruption—like a recent battery replacement or loose connections. A quick inspection of your battery, terminals, and alternator can help diagnose and fix the issue. Save time and money with step-by-step guidance from Haynes Manuals! Get your manual at haynes.com! #HaynesManuals #HaynesShowsYouHow #DodgeNeon #CarMaintenance | Haynes Manuals | Facebook